<template>
  <!-- 商品分类导航 -->

  <div class="type-nav">
    <div class="container">
      <div class="nav-left" @mouseleave="handleMouseLeave">
        <h2 class="all" @mouseenter="showNav = true">全部商品分类</h2>
         <transition	
            enter-active-class="animate__fadeIn"	
            leave-active-class="animate__fadeOut" >
            <div class="sort animate__animated" v-show = "showNav">
              <div class="all-sort-list2" @click.prevent="toSearch">
                <div class="item" v-for="c1 in categoryList" :key="c1.categoryId">
                  <h3>
                    <a :data-id="c1.categoryId" data-level="1">{{c1.categoryName}}</a>
                  </h3>
                  <div class="item-list clearfix">
                    <div class="subitem">
                      <dl
                        class="fore"
                        v-for="c2 in c1.categoryChild"
                        :key="c2.categoryId"
                      >
                        <dt>
                          <a :data-id="c2.categoryId" data-level="2">{{ c2.categoryName }}</a>
                        </dt>
                        <dd>
                          <em v-for="c3 in c2.categoryChild" :key="c3.categoryId">
                            <a :data-id="c3.categoryId" data-level="3">{{ c3.categoryName }}</a>
                          </em>
                        </dd>
                      </dl>
                    </div>
                  </div>
                </div>
              </div>
            </div>
         </transition>
       </div>
      <nav class="nav">
        <a href="###">服装城</a>
        <a href="###">美妆馆</a>
        <a href="###">尚品汇超市</a>
        <a href="###">全球购</a>
        <a href="###">闪购</a>
        <a href="###">团购</a>
        <a href="###">有趣</a>
        <a href="###">秒杀</a>
      </nav>
    </div>
  </div>
</template>

<script>
import { mapState } from "vuex";
import 'animate.css'
export default {
  name: "Typenav",
  data(){
    return {
       showNav:false
    }
  },
  methods:{
     toSearch(e){
      //  获取标签内容
   const {innerText} = e.target
   const {id,level} = e.target.dataset
  //  添加关键词字符
  const {keyword} = this.$route.query
    if(!level) return
       this.$router.push({
         path:'/search',
         query:{
           ["category"+level+"Id"] : id,
           categoryName:innerText,
           keyword
         }
       })
     },
     handleMouseLeave(){
         if(this.$route.path!=='/home'){
             this.showNav =false
         }
     }
  },
  computed: {
    ...mapState({
      categoryList: (state) => state.home.categoryList,
    }),
  },
  mounted() {
    //console.log(this.$router)
    // 发送请求获取数据
    this.$store.dispatch("getCategoryList");
    // 如果路径为/home则显示组件
    if(this.$route.path==='/home'){
      this.showNav =true
    }
  },
};
</script>

<style lang="less" scoped>
.type-nav {
  border-bottom: 2px solid #e1251b;

  .container {
    width: 1200px;
    margin: 0 auto;
    display: flex;
    position: relative;

    .all {
      width: 210px;
      height: 45px;
      background-color: #e1251b;
      line-height: 45px;
      text-align: center;
      color: #fff;
      font-size: 14px;
      font-weight: bold;
    }

    .nav {
      a {
        height: 45px;
        margin: 0 22px;
        line-height: 45px;
        font-size: 16px;
        color: #333;
      }
    }

    .sort {
      position: absolute;
      left: 0;
      top: 45px;
      width: 210px;
      height: 461px;
      position: absolute;
      background: #fafafa;
      z-index: 999;
      animation-duration: 0.5s;

      .all-sort-list2 {
        .item {
          h3 {
            line-height: 30px;
            font-size: 14px;
            font-weight: 400;
            overflow: hidden;
            padding: 0 20px;
            margin: 0;

            a {
              color: #333;
            }
          }

          .item-list {
            display: none;
            position: absolute;
            width: 734px;
            min-height: 460px;
            background: #f7f7f7;
            left: 210px;
            border: 1px solid #ddd;
            top: 0;
            z-index: 9999 !important;

            .subitem {
              float: left;
              width: 650px;
              padding: 0 4px 0 8px;

              dl {
                border-top: 1px solid #eee;
                padding: 6px 0;
                overflow: hidden;
                zoom: 1;

                &.fore {
                  border-top: 0;
                }

                dt {
                  float: left;
                  width: 54px;
                  line-height: 22px;
                  text-align: right;
                  padding: 3px 6px 0 0;
                  font-weight: 700;
                }

                dd {
                  float: left;
                  width: 415px;
                  padding: 3px 0 0;
                  overflow: hidden;

                  em {
                    float: left;
                    height: 14px;
                    line-height: 14px;
                    padding: 0 8px;
                    margin-top: 5px;
                    border-left: 1px solid #ccc;
                  }
                }
              }
            }
          }

          &:hover {
            h3 {
              background: #e1251b;
              a {
                color: #fff;
                text-decoration: none;
                cursor: pointer;
              }
            }
            .item-list {
              display: block;
              a:hover {
                color: #e1251b;
                text-decoration: none;
                font-weight: 700;
              }
            }
          }
        }
      }
    }
  }
}
</style>